BE784015A - DOUBLE HYDRAULIC SEAL FOR MINING OPERATION - Google Patents
DOUBLE HYDRAULIC SEAL FOR MINING OPERATIONInfo
- Publication number
- BE784015A BE784015A BE784015A BE784015A BE784015A BE 784015 A BE784015 A BE 784015A BE 784015 A BE784015 A BE 784015A BE 784015 A BE784015 A BE 784015A BE 784015 A BE784015 A BE 784015A
- Authority
- BE
- Belgium
- Prior art keywords
- hydraulic seal
- mining operation
- double hydraulic
- double
- mining
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Press Drives And Press Lines (AREA)
- Forging (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712126314 DE2126314B2 (en) | 1971-05-27 | 1971-05-27 | HYDRAULIC DOUBLE SUPPORTING STAMP FOR MINING |
Publications (1)
Publication Number | Publication Date |
---|---|
BE784015A true BE784015A (en) | 1972-09-18 |
Family
ID=5809058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE784015A BE784015A (en) | 1971-05-27 | 1972-05-26 | DOUBLE HYDRAULIC SEAL FOR MINING OPERATION |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE784015A (en) |
DE (1) | DE2126314B2 (en) |
FR (1) | FR2139196B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111173545A (en) * | 2020-03-07 | 2020-05-19 | 陕西陕煤韩城矿业有限公司 | Resetting device for two-piece single hydraulic prop and mounting method thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101994514B (en) * | 2010-11-10 | 2014-10-15 | 李其明 | Bidirectional hydraulic landing leg rod |
-
1971
- 1971-05-27 DE DE19712126314 patent/DE2126314B2/en not_active Ceased
-
1972
- 1972-05-26 BE BE784015A patent/BE784015A/en unknown
- 1972-05-29 FR FR7219185A patent/FR2139196B1/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111173545A (en) * | 2020-03-07 | 2020-05-19 | 陕西陕煤韩城矿业有限公司 | Resetting device for two-piece single hydraulic prop and mounting method thereof |
Also Published As
Publication number | Publication date |
---|---|
DE2126314A1 (en) | 1972-12-14 |
DE2126314B2 (en) | 1976-12-23 |
FR2139196A1 (en) | 1973-01-05 |
FR2139196B1 (en) | 1977-06-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ZM19472A1 (en) | Drill pipe breakout mechanism | |
ZA716365B (en) | Continuous mining machine | |
IS848B6 (en) | Floating barge for oil drilling | |
CA949876A (en) | Floating piston for selective hydraulic packer | |
ZA722924B (en) | Rock drill | |
ZA741224B (en) | Method of hydraulically mining underground materials | |
ZA721312B (en) | Rock drill | |
IE36683L (en) | Barrier for oil split on water | |
ZA722588B (en) | Hydraulic percussive implement | |
BE814947A (en) | ORE LOADER FOR SLOPING WELLS | |
BE784015A (en) | DOUBLE HYDRAULIC SEAL FOR MINING OPERATION | |
ZA726547B (en) | Hydraulic pit props | |
GB1384592A (en) | Mineral mining installations | |
BE777532A (en) | DIESEL-HYDRAULIC LOCOMOTIVE, ESPECIALLY FOR EXPLOITATION IN MINES | |
AT319168B (en) | Mining machine | |
SE393846B (en) | SEAL CONSTRUCTION FOR COAL VALVE | |
BE789602A (en) | MACHINE FOR DRIVING ANKLES INTO MINE ROOFS | |
BE837562A (en) | HYDRAULIC SEALER FOR MINES | |
AU3750471A (en) | Underground drilling machine | |
BE775745A (en) | HYDRAULIC MINE SEALER | |
ZA713530B (en) | Hydraulic centralizer | |
ZA734999B (en) | Oil boom | |
FR1539688A (en) | Hydraulic packer seal for sealing boreholes | |
SE404946B (en) | PROCEDURE FOR UNDERGROUND MINING OF MINERAL, SPECIAL IRON ORE | |
IT971733B (en) | HYDRAULIC DRILL HAMMER |